Claudia and the Great Search (Baby-Sitters Club #33)

Claudia feels very different from the rest of her family. Could she have been adopted? She's not sure who she is anymore.

Long Synopsis:

It's no secret that Claudia and her sister are different. For one, they don't look alike at all. Claudia loves her wild clothes and funky jewelry, and Janine dresses ... well, kind of nerdy. Janine is a genius, and Claudia brings home C's -- when she's lucky. Claudia opens the family photo album to see what she and her sister looked like when they were little. But there are hardly any baby pictures of Claudia! And when she goes searching for her birth certificate and birth announcement in the newspaper, Claudia can't find them. Is Claudia Kishi who she thinks she is? Or has she been ... adopted?